Combined supply system for electricity, heat and gas using common cordgrass as material and process

Abstract

The invention discloses a combined electricity, heat and gas supply system and process formed by using rice straw as raw material. It makes Spartina the best raw material source of high-quality energy and provides the cheapest clean energy for human beings. It includes Spartina gasification gas supply, power generation, and heat supply system, which is composed of feeder, gasifier, purifier, separator, fan, safety device, internal combustion engine generator set, control mechanism, etc. The gasification reaction furnace adopts a micro-negative pressure system to automatically adjust the intake air volume, gradient combustion reaction, gasification, the increase of furnace temperature promotes the cracking of tar, and the complete reaction in the furnace increases the calorific value of gas and reduces tar; , Falling film absorption and dehumidification functions in one wet purifier, high purification efficiency, one-time no power to remove ash and tar, etc., the purifier is a fully enclosed device, there is no gas leakage point, and the oxygen content of the gas is low , eliminating potential safety hazards. The special atmospheric pressure gas boiler is used for central heating, and the special gas internal combustion engine is used for power generation.

Description

technical field [0001] The invention relates to a triple supply system of electricity, heat and gas formed by using Spartina as raw material. Background technique [0002] Spartina belongs to the Gramineae Spartina plant, which was introduced from the United States in 1984 in my country. The introduction and large-scale planting of Spartina has played an important role in resisting wind and waves, protecting beaches and dikes, and promoting siltation and land formation in some coastal areas of my country. However, due to the well-developed root system and strong reproductive capacity of Spartina, the large area and high density of Spartina destroys the habitat of offshore organisms, competes with kelp, seaweed, and seaweed for nutrients, and affects the exchange capacity of seawater, causing red tides and becoming a global flood. The harmful weed known as "man-eating grass" has brought huge disasters to the local economy and ecology, and it is urgent to control and eradicat...

AI Technical Summary

Problems solved by technology

However, due to the well-developed root system and strong reproductive capacity of Spartina, the large area and high density of Spartina destroys the habitat of offshore organisms, competes with kelp, seaweed, and seaweed for nutrients, and affects the exchange capacity of seawater, triggering red tides and becoming a global seaweed. The harmful weed known as "man-eating grass" has brought huge disasters to the local economy and ecology. It is urgent to control and eradicate the growth and reproduction of Spartina. Measures such as control and comprehensive utilization are used to control Spartina, but with little effect, and the speed of control is far behind the speed of reproduction and spread of Spartina

The coverage area of ​​Spartina is getting bigger and bigger, and it grows on the coastal beaches of more than 100 counties (cities) from Jinxi, Liaoning in the north to Dianbai, Guangdong in the south, about 200 million mu, with a density of 150-2640 plants / m 2 , Spartina pastures generally produce 15-30 tons of fresh grass per hectare per year, and the highest can reach more than 37.5 tons. Facing such a huge resource of Spartina, there is currently no effective way to turn it from harm to benefit and waste into treasure. turn it into high-quality energy

At the same time, as a big agricultural country, our country produces a large amount of straw after harvesting crops every year, and all kinds of straw utilization equipment are independent and single-function products, which cannot form a comprehensive system including gas, electricity and heat. Cause its utilization rate is not high, resulting in a lot of waste

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